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ASTM A387 Grade 2 Steel vs. C91700 Bronze

ASTM A387 grade 2 steel belongs to the iron alloys classification, while C91700 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
90
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 25
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 470 to 550
330
Tensile Strength: Yield (Proof), MPa 260 to 350
170

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1470
1020
Melting Onset (Solidus), °C 1420
850
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 45
71
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
36
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 1.6
3.9
Embodied Energy, MJ/kg 20
63
Embodied Water, L/kg 50
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
35
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
140
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 16 to 20
11
Strength to Weight: Bending, points 17 to 19
12
Thermal Diffusivity, mm2/s 12
22
Thermal Shock Resistance, points 14 to 16
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0.050 to 0.21
0
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0
84.2 to 87.5
Iron (Fe), % 97.1 to 98.3
0 to 0.2
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0.55 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0
1.2 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.3
Silicon (Si), % 0.15 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.025
0 to 0.050
Tin (Sn), % 0
11.3 to 12.5
Zinc (Zn), % 0
0 to 0.25